schéma de la base de données.
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
suppression de createdAt et updatedAt de resultat.